TW200411277A - Surface light module and liquid crystal display using the same - Google Patents
Surface light module and liquid crystal display using the same Download PDFInfo
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- TW200411277A TW200411277A TW091137597A TW91137597A TW200411277A TW 200411277 A TW200411277 A TW 200411277A TW 091137597 A TW091137597 A TW 091137597A TW 91137597 A TW91137597 A TW 91137597A TW 200411277 A TW200411277 A TW 200411277A
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- Prior art keywords
- light
- item
- liquid crystal
- patent application
- emitting device
- Prior art date
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 36
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 210000004508 polar body Anatomy 0.000 claims 1
- 239000000463 material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/003—Lens or lenticular sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
- G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Description
200411277200411277
【發明所屬之技術領域] 本發明係關於一種面發光裝置及液晶顯示器，尤指一 種光束利用率高、光學性能優良之面發光裝置及採用該面 發光裝置之液晶顯不器。 【先前技術】 由於液晶顯示器具輕、薄、耗電小等優點，廣泛應用 於筆記本電腦、行動電話、個人數位助理等現代化資訊設 備。因液晶本身不具發光特性，需為其提供面發光裝置以 實現顯示功能。 習知面發光裝置包括光源及導光板，光源係相對導光 板之入光面設置，該導光板引導自光源發出光束之傳輸方 向’將線光源或點光源轉換成面光源出射。該導光板之底 面分佈複數網點，用以破壞光束於導光板内部傳輸之全反 射條件，且使其散射以提高導光板出射光束之均勻性，進 而提昇面發光裝置之整體性能。該網點之疏密、大小均可 有不同設計以適應不同之面發光裝置。[Technical field to which the invention belongs] The present invention relates to a surface light-emitting device and a liquid crystal display, and more particularly to a surface light-emitting device with high light beam utilization and excellent optical performance, and a liquid crystal display using the same. [Previous technology] Due to the advantages of light, thin, and low power consumption of liquid crystal display devices, it is widely used in modern information devices such as notebook computers, mobile phones, and personal digital assistants. Since the liquid crystal itself does not have light emitting characteristics, it is necessary to provide a surface light emitting device for the display function. The conventional surface light emitting device includes a light source and a light guide plate, and the light source is disposed opposite to the light incident surface of the light guide plate. The light guide plate guides the transmission direction of the light beam emitted from the light source and converts a linear light source or a point light source into a surface light source for emission. A plurality of dots are distributed on the bottom surface of the light guide plate to destroy the total reflection conditions of the light beam transmitted inside the light guide plate, and to diffuse it to improve the uniformity of the light beam emitted from the light guide plate, thereby improving the overall performance of the surface light emitting device. The outlets can be designed in different densities and sizes to accommodate different surface light emitting devices.
一種習知面發光裝置可參閱1 9 99年3月11日公告之中 華民國專利公告第354654號（第一圖參照）。該面發光裝 置9由導光板1 0、半透明材料板2〇、反光材料盒3〇及光源 40組成。該半透明材料板2〇係疊設於導光板1〇之上，導光 板10四周及底表面12係包容於該反光材料盒3〇内，該反光 材料盒30 —側開設定位槽31以收容點光源4〇於其内。工作 日守，點光源4 0發出之光束自導光板1 〇之一側面入射，經導 光板10底表面12之漸層波浪紋路及反光材料盒3〇作用後產For a conventional surface light-emitting device, please refer to the Republic of China Patent Bulletin No. 354654 (refer to the first figure) in the announcement on March 11, 1999. The surface emitting device 9 is composed of a light guide plate 10, a translucent material plate 20, a reflective material box 30, and a light source 40. The translucent material plate 20 is stacked on the light guide plate 10, the periphery of the light guide plate 10 and the bottom surface 12 are contained in the reflective material box 30, and a positioning groove 31 is provided on the side of the reflective material box 30 to accommodate The point light source 40 is within it. Working day guard, the light beam emitted by the point light source 40 is incident from one side of the light guide plate 10, and is produced by the gradual wave pattern on the bottom surface 12 of the light guide plate 10 and the reflective material box 30.
第6頁 200411277 五、發明說明（2) 生平面光自導光板1 0之出光面11出射，該半透明材料板 20使該平面光分佈更為均勻。 /牛透明材科板 、惟，由於點光源40具一定之數值孔徑，且苴 與導光板1 0之數值孔徑不同，使 八 工 全部耦人谁入逡本hin 使侍先，原40發出之光束無法 耦。進入¥先板1 〇，從而產生耦合損耗， 用率，影響面於氺梦罟^ 旁低光束利 示器之“衣置9乃至採用該面發光裝置9之液晶顯 j鑑於此，提供一種光束利用率及出 發光裝置實為必需。 砰度枚回之面 【發明内容】 .本發明之目的在於提供一種光束利用率及出井播ώ 咼之面發光裝置。 出先輝度較 本發明之又一目的在於提供一種 之液晶顯示器。 门光學性能佳 本發明面發光裝置包括一導光板、至少— 數點光源及至少一透鏡陣列。該導光板包括至Κ板、複 面相連之出光面，該複數點光源係安裳 電路板，且該至少一電路板係相對入光 、忒至 少一透鏡陣列位於該電路板與入光面之間，ς曰，該至 與導光板之間的耦合效率。 外點光源 本發明液晶顯示器包括一液晶面板及一 ;面發光裝置包括-導光板、至少-電路板、ii::置。 及至少一透鏡陣列。該導光板包括至少一入光面及4光源 光面相連之出光面，該複數點光源係安裝於、〜與入 ' μ & >〜電路 1 第7頁 五、發明說明（3) 板，且該至少一電路板係 ， 陣列位於該電路板盥入光、光面設置，該至少一透鏡 之間的耦合效率。該液曰:f間，以提昇點光源與導光板 置。 ^曰曰面板係相對導光板之出光面設 相較於先前技術，由於 位於該電路板與A光面之間‘=，發光裝4採用至少一 之光束可完全耦合進入該導弁、兄卩列，使得點光源發出 生之能量損耗，提高光束= 束輕合時產 液晶顯示器之輝度。 羊乂此柘加面發光裝置及 【實施方式】 请芩閱第二圖，係本發 該面發光裝置100包括一電路拓=先第一貫施方式， ϋβ 一 板〇、複數點光源丨2〇、一 束，#導光；feUf) ^ 21 40。該點光源120係用以發出光 光源12°發出光束之傳輸方向， 將其轉換為面光源出射。 源120係安裝於該電路板u〇，其可為發光二極 i: 且可藉由配置複數不同顏色之發光二極體或 小4泡以调配所需之光源顏色與輝度。 該透鏡陣列130係位於電路板110與導光板14〇之間， 用以將點光源120發出之光束耦合進入該導光板14〇，其包 括複數透鏡131，透鏡131之數目與點光源12〇之數目相 等。 該導光板140為平板形導光板，係採用壓克力、玻璃 或聚碳酸酯等透明材質製成。其包括一入光面141、與入Page 6 200411277 V. Description of the invention (2) The raw planar light is emitted from the light exit surface 11 of the light guide plate 10, and the translucent material plate 20 makes the planar light distribution more uniform. / Cattle transparent material section board, but because the point light source 40 has a certain numerical aperture, and the numerical aperture of 苴 and the light guide plate 10 is different, so that all eight workers are coupled with the person who entered the book hin to serve, the original 40 issued The beam cannot be coupled. Enter ¥ first board 1 〇, resulting in coupling loss, efficiency, affecting the face of 氺 氺 罟 ^ side of the low-beam display device "clothing 9 or even using the surface light-emitting device 9 LCD display j In view of this, provide a light beam The utilization ratio and the light emitting device are really necessary. The banging surface [Content of the invention]. The purpose of the present invention is to provide a light beam utilization ratio and a surface light emitting device. The invention is to provide a liquid crystal display. The door has good optical performance. The surface light-emitting device of the present invention includes a light guide plate, at least-several point light sources, and at least one lens array. The light guide plate includes a light-emitting surface connected to the K-plate and a multiple surface, and the multiple points The light source is an Ansung circuit board, and the at least one circuit board is opposite to the light incident, and at least one lens array is located between the circuit board and the light incident surface, that is, the coupling efficiency between the light guide plate and the light guide plate. The liquid crystal display of the present invention includes a liquid crystal panel and a surface light emitting device including a light guide plate, at least a circuit board, ii :: set, and at least one lens array. The light guide plate includes at least one The light-emitting surface and the light-emitting surface connected to the light surface of the 4 light sources, the plurality of point light sources are installed on the ~ ~ and the 'μ & > ~ circuit 1 page 7 5. Description of the invention (3) board, and the at least one circuit The plate system, the array is located on the circuit board and is placed on the light and light surface, and the coupling efficiency between the at least one lens. The liquid is called "f" to improve the placement of the point light source and the light guide plate. Compared with the prior art, since the light emitting surface is located between the circuit board and the A light surface, '=, the light emitting device 4 can be completely coupled into the guide and the sibling line by using at least one light beam, so that the point light source emits the Energy loss, increase the light beam = the brightness of the liquid crystal display produced when the light beam is light. She adds the surface light-emitting device and [Embodiment] Please refer to the second figure, the surface light-emitting device 100 includes a circuit extension = first The first implementation method is: ϋβ a plate 0, a plurality of point light sources 丨 20, a beam, #guide light; feUf) ^ 21 40. The point light source 120 is used to emit a light source at 12 °, and the transmission direction of the light beam will be It is converted into a surface light source. The source 120 is installed in the circuit Board u0, which can be a light emitting diode i: and can be configured with a plurality of different color light emitting diodes or small 4 bulbs to match the required light source color and brightness. The lens array 130 is located on the circuit board 110 and the guide The light guide plate 140 is used to couple the light beam emitted from the point light source 120 into the light guide plate 140. The light guide plate 140 includes a plurality of lenses 131. The number of the lenses 131 is equal to the number of the point light source 120. The light guide plate 140 is a flat guide. The light plate is made of transparent materials such as acrylic, glass, or polycarbonate. It includes a light entrance surface 141, and
200411277200411277
光面141相連之出光面142及與出光面142相對之底面143。 該入光=141係用以接收光源12〇發出之光束，為使出射光 束均勻刀佈5亥出光面1 4 2可加工為具一定粗糙度之粗糖 面。The light emitting surface 142 connected to the light surface 141 and the bottom surface 143 opposite to the light emitting surface 142. The incident light = 141 is used to receive the light beam emitted by the light source 120. In order to make the outgoing light beam uniform, the knife cloth 5 can be processed into a rough sugar surface with a certain roughness.
^ 、併3參閱第三圖’導光板140之底面143設置複數網 點144，以提高導光板14()出射光束之輝度及均句性。該網 點1 4 4之大小係沿遠離入光面丨4}之方向遞增，其為圓球 狀。惟，該網點144亦可為圓柱狀、正方體、金字塔形或 其他合適之形狀’其亦可均勻分佈於該底面143。該網點 144可以印刷或射出成型等方式分佈於導光板14〇之底面 另-亦可於底面1 4 3設置複數V型槽或霧狀剔花或咬 花（圖未不）以替代該複數網點丨44。為防止光束自導光 板U0之底面143逸出，該底面143可鍍覆一層反射膜（圖 未示）以進一步提高光束利用率。^ And 3 Refer to the third figure. The bottom surface 143 of the light guide plate 140 is provided with a plurality of dots 144 to improve the brightness and uniformity of the light beam emitted from the light guide plate 14 (). The size of the dots 1 4 4 increases in a direction away from the light incident surface 4}, and is spherical. However, the dots 144 may also be cylindrical, cube, pyramid, or other suitable shapes, and they may be evenly distributed on the bottom surface 143. The dots 144 can be distributed on the bottom surface of the light guide plate 14 by printing or injection molding. Alternatively, a plurality of V-grooves or mist-like flowers or bite flowers can be set on the bottom surface 1 4 3 (not shown) to replace the dots.丨 44. In order to prevent the light beam from escaping from the bottom surface 143 of the light guide plate U0, the bottom surface 143 can be plated with a reflective film (not shown) to further improve the utilization rate of the light beam.
睛參閱第四圖，該透鏡131之橫截面為一超圓錐橫截 面（SUperconic Cross Secti〇n)，其包括一部份橢圓面 132、自部份橢圓面132開口向外延伸之具一頂邊134及二 側邊135之梯形面133。請配合參閱第五圖與第六圖，該梯 形面之頂邊亦可向橢圓面一側凹陷成曲面，該梯形二側邊 亦了相互平行5又置。點光源1 2 〇係分別鄰近相應透鏡1 3 1之 頂邊1 3 4，點光源1 2 G出射之發散光經相應之透鏡丨3 }準直 後自導光板140之入光面141入射（參見第二圖），從而解 决由於點光源1 2 0與導光板1 4 0之孔徑不同而引起之耦合效 率較低之技術問題。惟，該透鏡丨3 i可為業界常用之滿足Referring to the fourth figure, the cross section of the lens 131 is a SUPERCONIC CROSS Section, which includes a part of an oval surface 132 and a top edge extending outward from the opening of the part of the oval surface 132. 134 and the trapezoidal surface 133 of the two sides 135. Please refer to Fig. 5 and Fig. 6. The top edge of the trapezoidal surface can also be recessed into a curved surface to one side of the elliptical surface, and the two sides of the trapezoidal surface are also parallel to each other. The point light source 1 2 0 is adjacent to the top edge 1 3 4 of the corresponding lens 1 31, and the divergent light emitted by the point light source 1 2 G passes through the corresponding lens 丨 3} and is incident from the light incident surface 141 of the light guide plate 140 (see (Second image), thereby solving the technical problem of low coupling efficiency caused by the difference in the aperture of the point light source 120 and the light guide plate 140. However, the lens 丨 3 i can be commonly used in the industry to meet
第9頁 200411277 五、發明說明（5) 準直條件之各種透鏡。 請參閱第七圖，係本發明面發光裝置第二實施方式。 忒面發光裝置200與第二圖所示之面發光裝置1〇〇大體相 同。該面發光裝置20 0包括安叢複數點光源22〇之二電路板 210、與該二電路板210配合之二透鏡陣列23〇及一導光板 240。該導光板240包括二入光面241，該二電路板21〇分 =於對應入光面241 —側。該二入光面241之上藉由電子束 条鍵或化學氣相沈積法等方法鍍覆一層增透膜2 4 5。該透 鏡陣列230位於電路板210與導光板240之間，用以將^光 源220發出之光束耦合進入該導光板24〇，從而提高光束利 用率’改善面發光裝置200之出光輝度。 請參閱第八圖，係本發明面發光裝置第三實施方式。 該面發光裝置3 0 0包括安裝複數點光源3 2 〇之一電路板 310、與該電路板310配合之透鏡陣列33〇及一導光板34〇。 該導光板340係楔形導光板，其包括一入光面34ι、一與入 光面341傾斜相連之底面343及一與底面343相對之.出光面 342。該電路板310位於入光面341 一側。該透鏡陣列33〇位 於電路板310與導光板340之間，用以將點光源32〇發出之 光束搞合進入該導光板34〇，從而提高光束利用率^改善 面發光裝置300之出光輝度。該底面343鍍覆反射膜（圖未 示）以反射投射於其上之光束，防止光束自底面343逸 出’以進一步增加面發光裝置3〇〇之出光輝度。 請參閱第九圖，係本發明液晶顯示器之一實施方式。 該液晶顯示器9 0包括一液晶面板9丨及第八圖所示之面發光Page 9 200411277 V. Description of the invention (5) Various lenses with collimation conditions. Please refer to the seventh figure, which is a second embodiment of the surface light-emitting device of the present invention. The planar light emitting device 200 is substantially the same as the planar light emitting device 100 shown in the second figure. The surface light emitting device 200 includes a circuit board 210 of two and a plurality of point light sources 220, a lens array 23 and a light guide plate 240 that cooperate with the two circuit boards 210. The light guide plate 240 includes two light incident surfaces 241, and the two circuit boards are equal to one side corresponding to the light incident surface 241. An anti-reflection coating 2 4 5 is plated on the two light-entering surfaces 241 by electron beam bonding or chemical vapor deposition. The lens array 230 is located between the circuit board 210 and the light guide plate 240, and is used to couple the light beam emitted from the light source 220 into the light guide plate 240, thereby increasing the utilization rate of the light beam and improving the light output of the surface light emitting device 200. Please refer to FIG. 8, which is a third embodiment of the surface light-emitting device of the present invention. The area light emitting device 300 includes a circuit board 310 on which a plurality of point light sources 3 2 0 are installed, a lens array 33 0 and a light guide plate 34 0 which are matched with the circuit board 310. The light guide plate 340 is a wedge-shaped light guide plate, which includes a light incident surface 34m, a bottom surface 343 obliquely connected to the light incident surface 341, and a light emitting surface 342 opposite to the bottom surface 343. The circuit board 310 is located on the light incident surface 341 side. The lens array 33 is located between the circuit board 310 and the light guide plate 340, and is used to combine the light beams emitted by the point light source 32 into the light guide plate 34, thereby improving the utilization rate of the light beam and improving the light output of the surface light emitting device 300. The bottom surface 343 is plated with a reflective film (not shown) to reflect the light beam projected thereon, to prevent the light beam from escaping from the bottom surface 343 'to further increase the brightness of the surface emitting device 300. Please refer to FIG. 9, which is an embodiment of a liquid crystal display of the present invention. The liquid crystal display 90 includes a liquid crystal panel 9 丨 and a surface light emitting device as shown in FIG.
第10頁 200411277 五 、發明說明（6) ， 裝置300。工作時，光源320發出之光束經透鏡陣列33()耦 合進入該導光板340，導光板340將其轉換成面光源後自導 光板340之出光面342出射至液晶面板91。為進一步提高出 射光束之輝度及均勻度，於液晶面板91與面發光裝置3〇〇 之間設置一棱鏡板92及一擴散板93。為防止光束自導光板 340之底面343出射’該液晶顯示器9〇進一步包括位於該底 面343處之反射板94。惟，亦可於該底面343鍍反射膜（圖 未不）以取代反射板94。由於該液晶顯示器9〇採用之面發Page 10 200411277 V. Description of the Invention (6) Device 300. During operation, the light beam emitted from the light source 320 is coupled into the light guide plate 340 through the lens array 33 (), and the light guide plate 340 converts it into a surface light source and emits it from the light emitting surface 342 of the light guide plate 340 to the liquid crystal panel 91. In order to further improve the brightness and uniformity of the emitted light beam, a prism plate 92 and a diffusion plate 93 are provided between the liquid crystal panel 91 and the surface light emitting device 300. In order to prevent the light beam from exiting from the bottom surface 343 of the light guide plate 340, the liquid crystal display 90 further includes a reflection plate 94 at the bottom surface 343. However, a reflective film (not shown) may be plated on the bottom surface 343 instead of the reflective plate 94. Because the LCD monitor 90 uses
光裝置300包括透鏡陣列330，可解決由於點光源32〇盥導X 光板340之孔徑不同而引起之麵合效率較低之技術問題。 進而有效實現面發光裝置300及液晶顯示器9〇整體光學性 能之改善。惟，本發明液晶顯示器採用之面發光裝置亦可 為第二圖所示之面發光裝置1〇〇或第七圖所示之面發 置200 。 ^衣 綜上所述，本發明確已符合發明專利要件，爰依 出專利申請。惟，以上所述者僅為本發明之較佳 方 式，舉凡熟^ i f技藝之人士，在援依本案發明精神所作 之等效修飾^化，皆應包含於以下之中請專利範圍内。 200411277 圖式簡單說明 第一圖係習知技術面發光裝置之立體分解圖。 第二圖係本發明面發光裝置第一實施方式之立體圖。 第三圖係第二圖所示面發光裝置之網點分佈示意圖。 第四圖係第二圖所示面發光裝置之透鏡之光路示意圖。 第五圖係第二圖所示面發光裝置之透鏡另一實施方式之截 面圖。 第六圖係第二圖所示面發光裝置之透鏡又一實施方式之截 面圖。 第七圖係本發明面發光裝置第二實施方式之立體圖。 第八圖係本發明面發光裝置第三實施方式之立體圖。 第九圖係本發明液晶顯示器之側視圖。 【主要元件符號說明】 面發光裝置 100 > 200 ^ 300 電路板 110 ^ 210 > 310 點光源 120 > 220 ^ 320 透鏡陣列 130 ^ 230 、330 透鏡 131 導光板 140 、240 、340 入光面 141 、241 、341 出光面 142 、342 底面 143 、343 網點 144 增透膜 245 液晶顯示器 90 液晶面板 91 稜鏡板 92 擴散板 93 反射板 94The light device 300 includes a lens array 330, which can solve the technical problem of low surface area efficiency caused by the different apertures of the point light source 32 and the X-ray plate 340. Furthermore, the overall optical performance of the surface light-emitting device 300 and the liquid crystal display 90 is effectively improved. However, the surface light-emitting device used in the liquid crystal display of the present invention may also be the surface light-emitting device 100 shown in the second figure or the surface light-emitting device 200 shown in the seventh figure. ^ Clothing In summary, the present invention has indeed met the requirements of the invention patent, and the patent application has been converted. However, the above is only the preferred method of the present invention. For those skilled in the art, equivalent modifications made in accordance with the spirit of the present invention should be included in the scope of the following patents. 200411277 Brief Description of the Drawings The first drawing is an exploded perspective view of a conventional light emitting device. The second figure is a perspective view of the first embodiment of the surface light-emitting device of the present invention. The third diagram is a schematic diagram of the dot distribution of the surface light-emitting device shown in the second diagram. The fourth diagram is a schematic diagram of the optical path of the lens of the surface light-emitting device shown in the second diagram. The fifth figure is a cross-sectional view of another embodiment of the lens of the surface light-emitting device shown in the second figure. The sixth figure is a sectional view of still another embodiment of the lens of the surface light-emitting device shown in the second figure. The seventh figure is a perspective view of a second embodiment of the surface light-emitting device of the present invention. The eighth figure is a perspective view of a third embodiment of the surface light-emitting device of the present invention. The ninth figure is a side view of the liquid crystal display of the present invention. [Description of main component symbols] Area light emitting device 100 > 200 ^ 300 circuit board 110 ^ 210 > 310 point light source 120 > 220 ^ 320 lens array 130 ^ 230, 330 lens 131 light guide plate 140, 240, 340 light incident surface 141, 241, 341 Light-emitting surface 142, 342 Bottom surface 143, 343 Dot 144 Anti-reflection coating 245 Liquid crystal display 90 Liquid crystal panel 91 Base plate 92 Diffuse plate 93 Reflective plate 94
第12頁Page 12
Claims (1)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW091137597A TWI254172B (en) | 2002-12-27 | 2002-12-27 | Surface light module and liquid crystal display using the same |
| US10/748,315 US20040141104A1 (en) | 2002-12-27 | 2003-12-29 | Surface lighting device and liquid crystal display using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW091137597A TWI254172B (en) | 2002-12-27 | 2002-12-27 | Surface light module and liquid crystal display using the same |
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| Publication Number | Publication Date |
|---|---|
| TW200411277A true TW200411277A (en) | 2004-07-01 |
| TWI254172B TWI254172B (en) | 2006-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW091137597A TWI254172B (en) | 2002-12-27 | 2002-12-27 | Surface light module and liquid crystal display using the same |
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| US (1) | US20040141104A1 (en) |
| TW (1) | TWI254172B (en) |
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| US7667238B2 (en) * | 2003-04-15 | 2010-02-23 | Luminus Devices, Inc. | Light emitting devices for liquid crystal displays |
| DE10319274A1 (en) * | 2003-04-29 | 2004-12-02 | Osram Opto Semiconductors Gmbh | light source |
| TWI240127B (en) * | 2004-05-05 | 2005-09-21 | Quanta Display Inc | A backlight module having a lens array |
| KR100682907B1 (en) * | 2004-12-14 | 2007-02-15 | 삼성전자주식회사 | Illumination apparatus for a display device using light guide plate |
| US20070045640A1 (en) | 2005-08-23 | 2007-03-01 | Erchak Alexei A | Light emitting devices for liquid crystal displays |
| EP1927024A1 (en) * | 2005-08-29 | 2008-06-04 | Koninklijke Philips Electronics N.V. | Light source and method of providing a bundle of light |
| US20070102718A1 (en) * | 2005-11-07 | 2007-05-10 | Akira Takekuma | Lens in light emitting device |
| KR20090059206A (en) * | 2007-12-06 | 2009-06-11 | 엘지이노텍 주식회사 | Display device |
| KR101499847B1 (en) * | 2008-07-03 | 2015-03-09 | 삼성디스플레이 주식회사 | Light guide plate and backlight unit having the same |
| US20120268656A1 (en) * | 2009-12-28 | 2012-10-25 | Sharp Kabushiki Kaisha | Lighting device, display device and television receiver |
| TWI452360B (en) | 2010-12-10 | 2014-09-11 | Ind Tech Res Inst | Collimating optical element, collimating optical assembly, collimating optical array and collimating optical module |
| US8351125B2 (en) | 2010-12-10 | 2013-01-08 | Industrial Technology Research Institute | Directional light distributed optical element and directional light distributed optical assembly |
| KR20120088121A (en) * | 2011-01-31 | 2012-08-08 | 삼성전자주식회사 | Backlight assembly and display apparatus having the same |
| US8827481B2 (en) * | 2011-02-16 | 2014-09-09 | Sharp Kabushiki Kaisha | Illumination device, display device, and television reception device |
| EP2895795B1 (en) * | 2012-06-11 | 2016-08-10 | Energizer Brands, LLC | A lighting device construction |
| US9845940B2 (en) | 2012-06-11 | 2017-12-19 | Energizer Brands, Llc | Lighting device and light panel construction |
| DE102013005988A1 (en) * | 2013-04-08 | 2014-10-09 | Emz-Hanauer Gmbh & Co. Kgaa | Electric home appliance with lighted interior |
| CN105629547A (en) * | 2016-01-22 | 2016-06-01 | 深圳市华星光电技术有限公司 | Display device and display terminal |
| US11073653B2 (en) * | 2019-12-19 | 2021-07-27 | Lumileds Llc | Edge coupled light collimation for backlight |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09269418A (en) * | 1996-03-29 | 1997-10-14 | Enplas Corp | Optical control member and surface light source |
| JPH09274184A (en) * | 1996-04-04 | 1997-10-21 | Dainippon Printing Co Ltd | Lens film and surface light source device using it |
| US6204899B1 (en) * | 1996-04-16 | 2001-03-20 | Dennis R. Hall | High efficiency, color coding light pipe methods for display applications, utilizing chiral liquid crystal materials |
| US5745519A (en) * | 1996-11-12 | 1998-04-28 | Opto Power Corp. | Laser diode system |
| JPH10260405A (en) * | 1997-03-18 | 1998-09-29 | Seiko Epson Corp | Lighting device, liquid-crystal display device, and electronic equipment |
| JPH11258602A (en) * | 1998-03-06 | 1999-09-24 | Enplas Corp | Side light type surface light source and liquid crystal display device |
| US6533440B2 (en) * | 2000-04-26 | 2003-03-18 | Yupo Corporation | Light reflector |
| US6643067B2 (en) * | 2000-11-22 | 2003-11-04 | Seiko Epson Corporation | Electro-optical device and electronic apparatus |
| KR100799156B1 (en) * | 2001-07-13 | 2008-01-29 | 삼성전자주식회사 | Light guided panel and method for fabricating thereof and liquid crystal display device using the same |
| US6843587B2 (en) * | 2002-05-11 | 2005-01-18 | Ls Tech Co., Ltd. | Surface light source apparatus, and method and apparatus for manufacturing the same |
-
2002
- 2002-12-27 TW TW091137597A patent/TWI254172B/en not_active IP Right Cessation
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2003
- 2003-12-29 US US10/748,315 patent/US20040141104A1/en not_active Abandoned
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| TWI254172B (en) | 2006-05-01 |
| US20040141104A1 (en) | 2004-07-22 |
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